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(No Model.)

D. 0. RICE & A. L. SURREY.

GAS EXTINGUISHER.

Patented June 23 UNITED STATES PATENT OFFICE.

. DWIGHT 0. RICE AND ARTHUR L. GURREY, OF SIOUX FALLS, DAKOTA TERRITORY.

GAS-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 320,694, dated June 23, 1885.

Application filed April 4, 1885. (No model.)

To all whom it may concern.- V

Be it known that we, DWIGHT 0. men and ARTHUR L. GURREY, citizens of the United States, residing at Sioux Falls, in the county of Minnehaha and Territory of Dakota, have invented certain new and useful Improvements in Gas-Extinguishers or Gas Gut-Offs; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to improvements in gas-extinguishers; and it consists in certaindetails of construction and arrangement of the several parts, as will be hereinafter more fully described in the specification, and pointed out in the accompanying drawings, in

' which-- Figure 1 is a side elevation of our device; Fig. 2, a plan view of same, and Fig. 3 a section of the automatic extinguishing-disks.

The object of our device is to present an extinguisher for gas-jets that will be automat= icaily closed when the flame has been extinguished. We base our invention on the expansion and contraction of metals when subjected to heat or cold. I

It is often the case that gas-jets are blown out by ignorant persons, thereby causing loss of life. Again, gas-jets left burning are extinguished by the wind, and the same loss follows. We propose to remedy these objections and defects by the device here shown.

The gas-pipe H, leading to the burner I, has a bend, H, of a suitable length so as to bring the burner beneath an iron ring, A. This ring is solid and of uniform crosssection, and has a perfectly smooth under surface. An arm, A, integral with the ring, projects inwardly to about the center of said ring. A thin brass disk, B, is journaled in the arm A at a, and rests on the collar or rim e of the ring A. This disk is provided with a series of perforations, at, which permit the smoke to pass freely through and act as draft-openings. A shaft or connecting-rod, G, is journaled at one end (as at b,) of the disk, the opposite end being journaled to a plate, K, (at b,) connected with the valve N. Around the shaft L of the valve a spiral spring, M, is wound in such a way unwound, (or the reverse, as may be deemed the most expedient).

The operation is as follows: Suppose the gas to be turned on and lighted, as shown in Fig. l. The disk B becomes heated, is consequently expanded and presses tightly against the ring A, and so long as the gas continues to burn the disk will remain tightly bound against the ring A. When the valve is opened,

the connecting-rod G is moved longitudinally toward the burner, causing the disk B to revolve through a certain arc. The heat from the flame acts directly upon the brass disk, expanding it laterally, and makes it fast to the ring A. Brass being far more expansible than iron for equal degrees of temperature, the disk is quickly expanded and secures itself, as before described. Now, when the gas is blown out, (as is often the case,) the disk, being very thin and provided with holes a, through which outside air can freely circulate, is quickly cooled. WVhen cooled and contracted, the rod G, through the intervention of spring M, acts to return the disk and the valve to their normal positions, and thus cuts off the flow of gas. The length of time required to cool the disk is usually not more than fortyfive seconds, so that the loss of gas and danger arising from its escape is reduced to a minimum.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a burner, of the inlet-valve provided with a spring, a rod connected thereto, a perforated metallic disk, and a ring of dissimilar metal, said disk being placed within said ring and connected with said rod, substantially as and for the purpose set forth.

2. The combination, with a burner and valve, said valve being provided with a spring,

of a ring and disk of dissimilar metals placed above the burner, said disk being placed within the ring and connected to a rod and valve, whereby, when the gas is extinguished, the ring acts through the intervention of the connecting device to automatically close the valve, substantially as and for the purpose set forth.

3. The combination, with a metal ring, A, secured to the gas-pipe above the burner, of

the movable perforated disk B, connected with valve and shut ofi the flow of gas, substanthe inlet'valve by means of a rod and a spring, tially as and forthe purpose set forth. 7 substantially as and for the purpose set forth. In testimony whereof we affix our signatures 4. The combination of a burner and a valve, in presence of two witnesses. 5 N, provided with a spring, M, with a ring placed above the burner, and a disk with the ring and connection between the disk and valve, whereby the heat of the gas holds the \Vitnesses: disk in position against the metallic ring, and F. H. BUCK,

10 when cooled permits the spring to turn the CHARLES A. RoUNDs. 

